Examination of microbial purity of certain beverage packaging parts

Abstract

U ovom radu, ispitana je mikrobiološka populacija dijelova ambalaže nekih konzumnih pića koji dolaze u dodir s ustima prilikom konzumacije. Analiziran je 51 uzorak iz pet različitih trgovačkih centara u Osijeku. Svrha ovog rada je bila odrediti broj i/ili prisutnost aerobnih mezofilnih bakterija, plijesni, kvasaca, bakterija iz porodice Enterobacteriaceae te bakterije vrste Escherichia coli i Staphylococcus aureus glede mogućnosti zaraze na taj način. U analiziranim uzorcima je utvrđena najveća prisutnost aerobnih mezofilnih bakterija (do 1×103 po cm2) i plijesni (do 4,7×102 po cm2). Bakterije porodice Enterobacteriaceae, i bakterija vrste Escherichia coli su bile manje zastupljene. Nije utvrđena prisutnost kvasaca niti bakterije vrste Staphylococcus aureus.In this work, microbial population of certain beverages packaging parts that gets in touch with the mouth during consumption, were assessed. Total number of 51 samples collected from five supermarkets in Osijek were analysed. The main purpose of this research was to evaluate number and/or presence of aerobic mesophilic bacteria, molds, yeasts, bacteria of Enterobacteriaceae family, and specie of Escherichia coli and Staphylococcus aureus concerning ability of infection. Highest contamination of analysed samples were observed by aerobic, mesophilic bacteria (1×103/cm2), and fungi (4,7×102/cm2). Enterobacteriaceae, and Escherichia coli were present in lower counts. The presence of yeasts and Staphylococcus aureus were not observed in analysed samples